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import React, { useEffect, useRef, useState } from "react";
import { type Stop } from "../data/StopDataProvider";
import "./StopGallery.css";
import StopGalleryItem from "./StopGalleryItem";
interface StopGalleryProps {
stops: Stop[];
title: string;
emptyMessage?: string;
}
const StopGallery: React.FC<StopGalleryProps> = ({
stops,
title,
emptyMessage,
}) => {
const scrollRef = useRef<HTMLDivElement>(null);
const [activeIndex, setActiveIndex] = useState(0);
useEffect(() => {
const element = scrollRef.current;
if (!element || stops.length === 0) {
return;
}
const handleScroll = () => {
const scrollLeft = element.scrollLeft;
const itemWidth = element.scrollWidth / stops.length;
const index = Math.round(scrollLeft / itemWidth);
setActiveIndex(index);
};
element.addEventListener("scroll", handleScroll);
return () => element.removeEventListener("scroll", handleScroll);
}, [stops.length]);
if (stops.length === 0 && emptyMessage) {
return (
<div className="gallery-container stoplist-section">
<h3 className="page-subtitle">{title}</h3>
<div className="gallery-empty-state">
<p className="message">{emptyMessage}</p>
</div>
</div>
);
}
if (stops.length === 0) {
return null;
}
return (
<div className="gallery-container stoplist-section">
<div className="gallery-header">
<h3 className="page-subtitle">{title}</h3>
<span className="gallery-counter">{stops.length}</span>
</div>
<div ref={scrollRef} className="gallery-scroll-container">
<div className="gallery-track">
{stops.map((stop) => (
<StopGalleryItem key={stop.stopId} stop={stop} />
))}
</div>
</div>
<div className="gallery-dots">
{stops.map((_, index) => (
<span
key={index}
className={`dot ${index === activeIndex ? "active" : ""}`}
></span>
))}
</div>
</div>
);
};
export default StopGallery;
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